/usr/bin/java -Xmx8000000000 -Xss4m -jar ./plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata ./data -tc ../../../trunk/examples/toolchains/AutomizerC.xml --traceabstraction.trace.refinement.strategy FIXED_PREFERENCES --traceabstraction.compute.interpolants.along.a.counterexample Craig_NestedInterpolation --traceabstraction.smt.solver Internal_SMTInterpol --traceabstraction.compute.trace.for.counterexample.result false --rcfgbuilder.size.of.a.code.block SingleStatement --traceabstraction.use.minimal.unsat.core.enumeration true --traceabstraction.additional.smt.options produce-proofs=true --traceabstraction.additional.smt.options produce-unsat-cores=true --traceabstraction.additional.smt.options log-additional-information=true -s ../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Default.epf -i ../../../trunk/examples/svcomp/eca-rers2012/Problem01_label11.c


--------------------------------------------------------------------------------


This is Ultimate 0.1.25-c90d42b
[2020-09-24 17:09:43,362 INFO  L177        SettingsManager]: Resetting all preferences to default values...
[2020-09-24 17:09:43,366 INFO  L181        SettingsManager]: Resetting UltimateCore preferences to default values
[2020-09-24 17:09:43,397 INFO  L184        SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring...
[2020-09-24 17:09:43,398 INFO  L181        SettingsManager]: Resetting Boogie Preprocessor preferences to default values
[2020-09-24 17:09:43,399 INFO  L181        SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values
[2020-09-24 17:09:43,401 INFO  L181        SettingsManager]: Resetting Abstract Interpretation preferences to default values
[2020-09-24 17:09:43,403 INFO  L181        SettingsManager]: Resetting LassoRanker preferences to default values
[2020-09-24 17:09:43,405 INFO  L181        SettingsManager]: Resetting Reaching Definitions preferences to default values
[2020-09-24 17:09:43,406 INFO  L181        SettingsManager]: Resetting SyntaxChecker preferences to default values
[2020-09-24 17:09:43,407 INFO  L181        SettingsManager]: Resetting Sifa preferences to default values
[2020-09-24 17:09:43,408 INFO  L184        SettingsManager]: Büchi Program Product provides no preferences, ignoring...
[2020-09-24 17:09:43,409 INFO  L181        SettingsManager]: Resetting LTL2Aut preferences to default values
[2020-09-24 17:09:43,410 INFO  L181        SettingsManager]: Resetting PEA to Boogie preferences to default values
[2020-09-24 17:09:43,411 INFO  L181        SettingsManager]: Resetting BlockEncodingV2 preferences to default values
[2020-09-24 17:09:43,412 INFO  L181        SettingsManager]: Resetting ChcToBoogie preferences to default values
[2020-09-24 17:09:43,413 INFO  L181        SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values
[2020-09-24 17:09:43,415 INFO  L181        SettingsManager]: Resetting BuchiAutomizer preferences to default values
[2020-09-24 17:09:43,416 INFO  L181        SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values
[2020-09-24 17:09:43,418 INFO  L181        SettingsManager]: Resetting CodeCheck preferences to default values
[2020-09-24 17:09:43,420 INFO  L181        SettingsManager]: Resetting InvariantSynthesis preferences to default values
[2020-09-24 17:09:43,421 INFO  L181        SettingsManager]: Resetting RCFGBuilder preferences to default values
[2020-09-24 17:09:43,423 INFO  L181        SettingsManager]: Resetting Referee preferences to default values
[2020-09-24 17:09:43,424 INFO  L181        SettingsManager]: Resetting TraceAbstraction preferences to default values
[2020-09-24 17:09:43,426 INFO  L184        SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring...
[2020-09-24 17:09:43,427 INFO  L184        SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring...
[2020-09-24 17:09:43,427 INFO  L181        SettingsManager]: Resetting TreeAutomizer preferences to default values
[2020-09-24 17:09:43,428 INFO  L181        SettingsManager]: Resetting IcfgToChc preferences to default values
[2020-09-24 17:09:43,428 INFO  L181        SettingsManager]: Resetting IcfgTransformer preferences to default values
[2020-09-24 17:09:43,430 INFO  L184        SettingsManager]: ReqToTest provides no preferences, ignoring...
[2020-09-24 17:09:43,430 INFO  L181        SettingsManager]: Resetting Boogie Printer preferences to default values
[2020-09-24 17:09:43,431 INFO  L181        SettingsManager]: Resetting ChcSmtPrinter preferences to default values
[2020-09-24 17:09:43,432 INFO  L181        SettingsManager]: Resetting ReqPrinter preferences to default values
[2020-09-24 17:09:43,433 INFO  L181        SettingsManager]: Resetting Witness Printer preferences to default values
[2020-09-24 17:09:43,434 INFO  L184        SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring...
[2020-09-24 17:09:43,434 INFO  L181        SettingsManager]: Resetting CDTParser preferences to default values
[2020-09-24 17:09:43,435 INFO  L184        SettingsManager]: AutomataScriptParser provides no preferences, ignoring...
[2020-09-24 17:09:43,435 INFO  L184        SettingsManager]: ReqParser provides no preferences, ignoring...
[2020-09-24 17:09:43,435 INFO  L181        SettingsManager]: Resetting SmtParser preferences to default values
[2020-09-24 17:09:43,437 INFO  L181        SettingsManager]: Resetting Witness Parser preferences to default values
[2020-09-24 17:09:43,437 INFO  L188        SettingsManager]: Finished resetting all preferences to default values...
[2020-09-24 17:09:43,438 INFO  L101        SettingsManager]: Beginning loading settings from /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Default.epf
[2020-09-24 17:09:43,472 INFO  L113        SettingsManager]: Loading preferences was successful
[2020-09-24 17:09:43,472 INFO  L115        SettingsManager]: Preferences different from defaults after loading the file:
[2020-09-24 17:09:43,474 INFO  L136        SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults:
[2020-09-24 17:09:43,474 INFO  L138        SettingsManager]:  * Create parallel compositions if possible=false
[2020-09-24 17:09:43,474 INFO  L138        SettingsManager]:  * Use SBE=true
[2020-09-24 17:09:43,474 INFO  L136        SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults:
[2020-09-24 17:09:43,475 INFO  L138        SettingsManager]:  * sizeof long=4
[2020-09-24 17:09:43,475 INFO  L138        SettingsManager]:  * Overapproximate operations on floating types=true
[2020-09-24 17:09:43,475 INFO  L138        SettingsManager]:  * sizeof POINTER=4
[2020-09-24 17:09:43,475 INFO  L138        SettingsManager]:  * Check division by zero=IGNORE
[2020-09-24 17:09:43,475 INFO  L138        SettingsManager]:  * Pointer to allocated memory at dereference=IGNORE
[2020-09-24 17:09:43,476 INFO  L138        SettingsManager]:  * If two pointers are subtracted or compared they have the same base address=IGNORE
[2020-09-24 17:09:43,476 INFO  L138        SettingsManager]:  * Check array bounds for arrays that are off heap=IGNORE
[2020-09-24 17:09:43,476 INFO  L138        SettingsManager]:  * sizeof long double=12
[2020-09-24 17:09:43,476 INFO  L138        SettingsManager]:  * Check if freed pointer was valid=false
[2020-09-24 17:09:43,477 INFO  L138        SettingsManager]:  * Use constant arrays=true
[2020-09-24 17:09:43,477 INFO  L138        SettingsManager]:  * Pointer base address is valid at dereference=IGNORE
[2020-09-24 17:09:43,477 INFO  L136        SettingsManager]: Preferences of RCFGBuilder differ from their defaults:
[2020-09-24 17:09:43,477 INFO  L138        SettingsManager]:  * Size of a code block=SequenceOfStatements
[2020-09-24 17:09:43,478 INFO  L138        SettingsManager]:  * To the following directory=./dump/
[2020-09-24 17:09:43,478 INFO  L138        SettingsManager]:  * SMT solver=External_DefaultMode
[2020-09-24 17:09:43,478 INFO  L138        SettingsManager]:  * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000
[2020-09-24 17:09:43,478 INFO  L136        SettingsManager]: Preferences of TraceAbstraction differ from their defaults:
[2020-09-24 17:09:43,478 INFO  L138        SettingsManager]:  * Compute Interpolants along a Counterexample=FPandBP
[2020-09-24 17:09:43,479 INFO  L138        SettingsManager]:  * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles
[2020-09-24 17:09:43,479 INFO  L138        SettingsManager]:  * Trace refinement strategy=CAMEL
[2020-09-24 17:09:43,479 INFO  L138        SettingsManager]:  * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in
[2020-09-24 17:09:43,479 INFO  L138        SettingsManager]:  * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true
[2020-09-24 17:09:43,479 INFO  L138        SettingsManager]:  * Trace refinement exception blacklist=NONE
[2020-09-24 17:09:43,480 INFO  L138        SettingsManager]:  * SMT solver=External_ModelsAndUnsatCoreMode
Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Trace refinement strategy -> FIXED_PREFERENCES
Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Compute Interpolants along a Counterexample -> Craig_NestedInterpolation
Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: SMT solver -> Internal_SMTInterpol
Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Compute trace for counterexample result -> false
Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder: Size of a code block -> SingleStatement
Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Use minimal unsat core enumeration -> true
Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional SMT options -> produce-proofs=true;produce-unsat-cores=true;log-additional-information=true;
Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional SMT options -> produce-proofs=true;produce-unsat-cores=true;log-additional-information=true;
Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional SMT options -> produce-proofs=true;produce-unsat-cores=true;log-additional-information=true;
[2020-09-24 17:09:43,980 INFO  L75    nceAwareModelManager]: Repository-Root is: /tmp
[2020-09-24 17:09:43,997 INFO  L258   ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized
[2020-09-24 17:09:44,002 INFO  L214   ainManager$Toolchain]: [Toolchain 1]: Toolchain selected.
[2020-09-24 17:09:44,004 INFO  L271        PluginConnector]: Initializing CDTParser...
[2020-09-24 17:09:44,004 INFO  L275        PluginConnector]: CDTParser initialized
[2020-09-24 17:09:44,005 INFO  L429   ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/eca-rers2012/Problem01_label11.c
[2020-09-24 17:09:44,100 INFO  L220              CDTParser]: Created temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/1f83bdf44/0df193aaf67d4d6db41beee2d3a086b4/FLAG4a827d144
[2020-09-24 17:09:44,765 INFO  L306              CDTParser]: Found 1 translation units.
[2020-09-24 17:09:44,766 INFO  L160              CDTParser]: Scanning /storage/repos/ultimate-2/trunk/examples/svcomp/eca-rers2012/Problem01_label11.c
[2020-09-24 17:09:44,791 INFO  L349              CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/1f83bdf44/0df193aaf67d4d6db41beee2d3a086b4/FLAG4a827d144
[2020-09-24 17:09:44,990 INFO  L357              CDTParser]: Successfully deleted /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/1f83bdf44/0df193aaf67d4d6db41beee2d3a086b4
[2020-09-24 17:09:45,005 INFO  L296   ainManager$Toolchain]: ####################### [Toolchain 1] #######################
[2020-09-24 17:09:45,014 INFO  L131        ToolchainWalker]: Walking toolchain with 4 elements.
[2020-09-24 17:09:45,017 INFO  L113        PluginConnector]: ------------------------CACSL2BoogieTranslator----------------------------
[2020-09-24 17:09:45,017 INFO  L271        PluginConnector]: Initializing CACSL2BoogieTranslator...
[2020-09-24 17:09:45,021 INFO  L275        PluginConnector]: CACSL2BoogieTranslator initialized
[2020-09-24 17:09:45,022 INFO  L185        PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 24.09 05:09:44" (1/1) ...
[2020-09-24 17:09:45,027 INFO  L205        PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@53446a1c and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 05:09:45, skipping insertion in model container
[2020-09-24 17:09:45,028 INFO  L185        PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 24.09 05:09:44" (1/1) ...
[2020-09-24 17:09:45,037 INFO  L145         MainTranslator]: Starting translation in SV-COMP mode 
[2020-09-24 17:09:45,092 INFO  L178         MainTranslator]: Built tables and reachable declarations
[2020-09-24 17:09:45,667 INFO  L206          PostProcessor]: Analyzing one entry point: main
[2020-09-24 17:09:45,679 INFO  L203         MainTranslator]: Completed pre-run
[2020-09-24 17:09:45,813 INFO  L206          PostProcessor]: Analyzing one entry point: main
[2020-09-24 17:09:45,833 INFO  L208         MainTranslator]: Completed translation
[2020-09-24 17:09:45,834 INFO  L202        PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 05:09:45 WrapperNode
[2020-09-24 17:09:45,834 INFO  L132        PluginConnector]: ------------------------ END CACSL2BoogieTranslator----------------------------
[2020-09-24 17:09:45,835 INFO  L113        PluginConnector]: ------------------------Boogie Preprocessor----------------------------
[2020-09-24 17:09:45,835 INFO  L271        PluginConnector]: Initializing Boogie Preprocessor...
[2020-09-24 17:09:45,835 INFO  L275        PluginConnector]: Boogie Preprocessor initialized
[2020-09-24 17:09:45,849 INFO  L185        PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 05:09:45" (1/1) ...
[2020-09-24 17:09:45,849 INFO  L185        PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 05:09:45" (1/1) ...
[2020-09-24 17:09:45,869 INFO  L185        PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 05:09:45" (1/1) ...
[2020-09-24 17:09:45,869 INFO  L185        PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 05:09:45" (1/1) ...
[2020-09-24 17:09:45,913 INFO  L185        PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 05:09:45" (1/1) ...
[2020-09-24 17:09:45,931 INFO  L185        PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 05:09:45" (1/1) ...
[2020-09-24 17:09:45,937 INFO  L185        PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 05:09:45" (1/1) ...
[2020-09-24 17:09:45,951 INFO  L132        PluginConnector]: ------------------------ END Boogie Preprocessor----------------------------
[2020-09-24 17:09:45,952 INFO  L113        PluginConnector]: ------------------------RCFGBuilder----------------------------
[2020-09-24 17:09:45,952 INFO  L271        PluginConnector]: Initializing RCFGBuilder...
[2020-09-24 17:09:45,952 INFO  L275        PluginConnector]: RCFGBuilder initialized
[2020-09-24 17:09:45,954 INFO  L185        PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 05:09:45" (1/1) ...
No working directory specified, using /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/z3
Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null)
Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000
[2020-09-24 17:09:46,051 INFO  L138     BoogieDeclarations]: Found implementation of procedure ULTIMATE.init
[2020-09-24 17:09:46,052 INFO  L138     BoogieDeclarations]: Found implementation of procedure ULTIMATE.start
[2020-09-24 17:09:46,053 INFO  L138     BoogieDeclarations]: Found implementation of procedure calculate_output
[2020-09-24 17:09:46,053 INFO  L138     BoogieDeclarations]: Found implementation of procedure main
[2020-09-24 17:09:46,053 INFO  L130     BoogieDeclarations]: Found specification of procedure calculate_output
[2020-09-24 17:09:46,053 INFO  L130     BoogieDeclarations]: Found specification of procedure __VERIFIER_error
[2020-09-24 17:09:46,054 INFO  L130     BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int
[2020-09-24 17:09:46,054 INFO  L130     BoogieDeclarations]: Found specification of procedure exit
[2020-09-24 17:09:46,054 INFO  L130     BoogieDeclarations]: Found specification of procedure main
[2020-09-24 17:09:46,055 INFO  L130     BoogieDeclarations]: Found specification of procedure ULTIMATE.init
[2020-09-24 17:09:46,055 INFO  L130     BoogieDeclarations]: Found specification of procedure ULTIMATE.start
[2020-09-24 17:09:47,395 INFO  L290             CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start)
[2020-09-24 17:09:47,395 INFO  L295             CfgBuilder]: Removed 1 assume(true) statements.
[2020-09-24 17:09:47,404 INFO  L202        PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 24.09 05:09:47 BoogieIcfgContainer
[2020-09-24 17:09:47,405 INFO  L132        PluginConnector]: ------------------------ END RCFGBuilder----------------------------
[2020-09-24 17:09:47,406 INFO  L113        PluginConnector]: ------------------------TraceAbstraction----------------------------
[2020-09-24 17:09:47,406 INFO  L271        PluginConnector]: Initializing TraceAbstraction...
[2020-09-24 17:09:47,410 INFO  L275        PluginConnector]: TraceAbstraction initialized
[2020-09-24 17:09:47,411 INFO  L185        PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 24.09 05:09:44" (1/3) ...
[2020-09-24 17:09:47,412 INFO  L205        PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4673d163 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 24.09 05:09:47, skipping insertion in model container
[2020-09-24 17:09:47,412 INFO  L185        PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 05:09:45" (2/3) ...
[2020-09-24 17:09:47,412 INFO  L205        PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4673d163 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 24.09 05:09:47, skipping insertion in model container
[2020-09-24 17:09:47,413 INFO  L185        PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 24.09 05:09:47" (3/3) ...
[2020-09-24 17:09:47,415 INFO  L109   eAbstractionObserver]: Analyzing ICFG Problem01_label11.c
[2020-09-24 17:09:47,426 INFO  L157   ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:Craig_NestedInterpolation Determinization: PREDICATE_ABSTRACTION
[2020-09-24 17:09:47,438 INFO  L169   ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations.
[2020-09-24 17:09:47,461 INFO  L251      AbstractCegarLoop]: Starting to check reachability of 1 error locations.
[2020-09-24 17:09:47,497 INFO  L375      AbstractCegarLoop]: Interprodecural is true
[2020-09-24 17:09:47,497 INFO  L376      AbstractCegarLoop]: Hoare is true
[2020-09-24 17:09:47,497 INFO  L377      AbstractCegarLoop]: Compute interpolants for Craig_NestedInterpolation
[2020-09-24 17:09:47,497 INFO  L378      AbstractCegarLoop]: Backedges is STRAIGHT_LINE
[2020-09-24 17:09:47,498 INFO  L379      AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION
[2020-09-24 17:09:47,499 INFO  L380      AbstractCegarLoop]: Difference is false
[2020-09-24 17:09:47,499 INFO  L381      AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA
[2020-09-24 17:09:47,499 INFO  L385      AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce========
[2020-09-24 17:09:47,544 INFO  L276                IsEmpty]: Start isEmpty. Operand 525 states.
[2020-09-24 17:09:47,579 INFO  L282                IsEmpty]: Finished isEmpty. Found accepting run of length 138
[2020-09-24 17:09:47,581 INFO  L414         BasicCegarLoop]: Found error trace
[2020-09-24 17:09:47,582 INFO  L422         BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2020-09-24 17:09:47,583 INFO  L427      AbstractCegarLoop]: === Iteration 1 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]===
[2020-09-24 17:09:47,590 INFO  L144       PredicateUnifier]: Initialized classic predicate unifier
[2020-09-24 17:09:47,591 INFO  L82        PathProgramCache]: Analyzing trace with hash 149723165, now seen corresponding path program 1 times
[2020-09-24 17:09:47,603 INFO  L163   FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES
[2020-09-24 17:09:47,603 INFO  L354   FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [466124607]
[2020-09-24 17:09:47,604 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2020-09-24 17:09:47,943 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-09-24 17:09:48,035 FATAL L256   erpolLogProxyWrapper]: Now shrinking...
[2020-09-24 17:09:48,346 FATAL L256   erpolLogProxyWrapper]: Now shrinking...
[2020-09-24 17:09:48,677 FATAL L256   erpolLogProxyWrapper]: Now shrinking...
[2020-09-24 17:09:48,929 FATAL L256   erpolLogProxyWrapper]: Now shrinking...
[2020-09-24 17:09:49,397 FATAL L256   erpolLogProxyWrapper]: Now shrinking...
[2020-09-24 17:09:50,110 FATAL L256   erpolLogProxyWrapper]: Now shrinking...
[2020-09-24 17:09:52,824 FATAL L256   erpolLogProxyWrapper]: Now shrinking...
[2020-09-24 17:09:56,670 FATAL L256   erpolLogProxyWrapper]: Now shrinking...
[2020-09-24 17:09:56,894 FATAL L256   erpolLogProxyWrapper]: Now shrinking...
[2020-09-24 17:09:58,354 FATAL L256   erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set)
[2020-09-24 17:09:58,355 FATAL L256   erpolLogProxyWrapper]: Cardinality of Constraint set: 146
[2020-09-24 17:09:58,355 FATAL L256   erpolLogProxyWrapper]: Number of enumerated Muses: 9
[2020-09-24 17:09:58,355 FATAL L256   erpolLogProxyWrapper]: Time needed for enumeration: 10405
[2020-09-24 17:09:58,356 FATAL L256   erpolLogProxyWrapper]: Heuristic: RANDOM
[2020-09-24 17:09:58,357 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has size: 26
[2020-09-24 17:09:58,357 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has depth: 20
[2020-09-24 17:09:58,357 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has width: 114
[2020-09-24 17:09:58,357 FATAL L256   erpolLogProxyWrapper]: Time needed for Heuristics: 2
[2020-09-24 17:09:58,982 WARN  L193               SmtUtils]: Spent 137.00 ms on a formula simplification. DAG size of input: 42 DAG size of output: 36
[2020-09-24 17:09:59,139 WARN  L193               SmtUtils]: Spent 129.00 ms on a formula simplification. DAG size of input: 46 DAG size of output: 37
[2020-09-24 17:09:59,260 WARN  L193               SmtUtils]: Spent 100.00 ms on a formula simplification. DAG size of input: 46 DAG size of output: 35
[2020-09-24 17:09:59,386 WARN  L193               SmtUtils]: Spent 102.00 ms on a formula simplification. DAG size of input: 47 DAG size of output: 34
[2020-09-24 17:10:00,293 INFO  L375   atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0
[2020-09-24 17:10:00,301 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-09-24 17:10:00,308 FATAL L256   erpolLogProxyWrapper]: Now shrinking...
[2020-09-24 17:10:00,365 FATAL L256   erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set)
[2020-09-24 17:10:00,365 FATAL L256   erpolLogProxyWrapper]: Cardinality of Constraint set: 27
[2020-09-24 17:10:00,366 FATAL L256   erpolLogProxyWrapper]: Number of enumerated Muses: 1
[2020-09-24 17:10:00,366 FATAL L256   erpolLogProxyWrapper]: Time needed for enumeration: 63
[2020-09-24 17:10:00,366 FATAL L256   erpolLogProxyWrapper]: Heuristic: RANDOM
[2020-09-24 17:10:00,366 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has size: 6
[2020-09-24 17:10:00,367 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has depth: 2
[2020-09-24 17:10:00,367 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has width: 20
[2020-09-24 17:10:00,367 FATAL L256   erpolLogProxyWrapper]: Time needed for Heuristics: 0
[2020-09-24 17:10:00,578 INFO  L134       CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2020-09-24 17:10:00,579 INFO  L354   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [466124607]
[2020-09-24 17:10:00,581 INFO  L220   FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences.
[2020-09-24 17:10:00,581 INFO  L233   FreeRefinementEngine]: Number of different interpolants: perfect sequences [24] imperfect sequences [] total 24
[2020-09-24 17:10:00,582 INFO  L156   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [975546249]
[2020-09-24 17:10:00,587 INFO  L459      AbstractCegarLoop]: Interpolant automaton has 24 states
[2020-09-24 17:10:00,588 INFO  L143   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES
[2020-09-24 17:10:00,601 INFO  L142   InterpolantAutomaton]: Constructing interpolant automaton starting with 24 interpolants.
[2020-09-24 17:10:00,602 INFO  L144   InterpolantAutomaton]: CoverageRelationStatistics Valid=213, Invalid=339, Unknown=0, NotChecked=0, Total=552
[2020-09-24 17:10:00,605 INFO  L87              Difference]: Start difference. First operand 525 states. Second operand 24 states.
[2020-09-24 17:10:00,855 WARN  L193               SmtUtils]: Spent 105.00 ms on a formula simplification that was a NOOP. DAG size: 67
[2020-09-24 17:10:01,152 WARN  L193               SmtUtils]: Spent 105.00 ms on a formula simplification that was a NOOP. DAG size: 79
[2020-09-24 17:10:01,289 WARN  L193               SmtUtils]: Spent 112.00 ms on a formula simplification that was a NOOP. DAG size: 87
[2020-09-24 17:10:01,620 WARN  L193               SmtUtils]: Spent 289.00 ms on a formula simplification. DAG size of input: 93 DAG size of output: 92
[2020-09-24 17:10:01,985 WARN  L193               SmtUtils]: Spent 295.00 ms on a formula simplification. DAG size of input: 93 DAG size of output: 92
[2020-09-24 17:10:02,263 WARN  L193               SmtUtils]: Spent 121.00 ms on a formula simplification that was a NOOP. DAG size: 94
[2020-09-24 17:10:02,483 WARN  L193               SmtUtils]: Spent 123.00 ms on a formula simplification that was a NOOP. DAG size: 94
[2020-09-24 17:10:03,177 WARN  L193               SmtUtils]: Spent 187.00 ms on a formula simplification that was a NOOP. DAG size: 94
[2020-09-24 17:10:03,513 WARN  L193               SmtUtils]: Spent 156.00 ms on a formula simplification that was a NOOP. DAG size: 94
[2020-09-24 17:10:03,937 WARN  L193               SmtUtils]: Spent 136.00 ms on a formula simplification that was a NOOP. DAG size: 94
[2020-09-24 17:10:04,251 WARN  L193               SmtUtils]: Spent 159.00 ms on a formula simplification that was a NOOP. DAG size: 94
[2020-09-24 17:10:04,801 WARN  L193               SmtUtils]: Spent 154.00 ms on a formula simplification that was a NOOP. DAG size: 94
[2020-09-24 17:10:05,255 WARN  L193               SmtUtils]: Spent 106.00 ms on a formula simplification that was a NOOP. DAG size: 94
[2020-09-24 17:10:05,468 WARN  L193               SmtUtils]: Spent 122.00 ms on a formula simplification that was a NOOP. DAG size: 91
[2020-09-24 17:10:05,990 WARN  L193               SmtUtils]: Spent 110.00 ms on a formula simplification that was a NOOP. DAG size: 88
[2020-09-24 17:10:07,030 WARN  L193               SmtUtils]: Spent 242.00 ms on a formula simplification. DAG size of input: 85 DAG size of output: 84
[2020-09-24 17:10:07,607 WARN  L193               SmtUtils]: Spent 232.00 ms on a formula simplification. DAG size of input: 85 DAG size of output: 84
[2020-09-24 17:10:07,928 WARN  L193               SmtUtils]: Spent 115.00 ms on a formula simplification that was a NOOP. DAG size: 89
[2020-09-24 17:10:08,105 WARN  L193               SmtUtils]: Spent 130.00 ms on a formula simplification that was a NOOP. DAG size: 86
[2020-09-24 17:10:08,575 WARN  L193               SmtUtils]: Spent 139.00 ms on a formula simplification that was a NOOP. DAG size: 86
[2020-09-24 17:10:08,798 WARN  L193               SmtUtils]: Spent 119.00 ms on a formula simplification that was a NOOP. DAG size: 86
[2020-09-24 17:10:09,091 WARN  L193               SmtUtils]: Spent 135.00 ms on a formula simplification that was a NOOP. DAG size: 86
[2020-09-24 17:10:09,376 WARN  L193               SmtUtils]: Spent 126.00 ms on a formula simplification that was a NOOP. DAG size: 86
[2020-09-24 17:10:09,718 WARN  L193               SmtUtils]: Spent 130.00 ms on a formula simplification that was a NOOP. DAG size: 86
[2020-09-24 17:10:10,138 WARN  L193               SmtUtils]: Spent 116.00 ms on a formula simplification that was a NOOP. DAG size: 86
[2020-09-24 17:10:10,314 WARN  L193               SmtUtils]: Spent 112.00 ms on a formula simplification that was a NOOP. DAG size: 86
[2020-09-24 17:10:10,664 WARN  L193               SmtUtils]: Spent 112.00 ms on a formula simplification that was a NOOP. DAG size: 83
[2020-09-24 17:10:11,627 INFO  L144             Difference]: Subtrahend was deterministic. Have not used determinization.
[2020-09-24 17:10:11,628 INFO  L93              Difference]: Finished difference Result 1690 states and 2458 transitions.
[2020-09-24 17:10:11,629 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 49 states. 
[2020-09-24 17:10:11,630 INFO  L78                 Accepts]: Start accepts. Automaton has 24 states. Word has length 137
[2020-09-24 17:10:11,631 INFO  L84                 Accepts]: Finished accepts. some prefix is accepted.
[2020-09-24 17:10:11,663 INFO  L225             Difference]: With dead ends: 1690
[2020-09-24 17:10:11,663 INFO  L226             Difference]: Without dead ends: 1062
[2020-09-24 17:10:11,680 INFO  L675         BasicCegarLoop]: 0 DeclaredPredicates, 66 GetRequests, 3 SyntacticMatches, 1 SemanticMatches, 62 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1142 ImplicationChecksByTransitivity, 7.1s TimeCoverageRelationStatistics Valid=1263, Invalid=2769, Unknown=0, NotChecked=0, Total=4032
[2020-09-24 17:10:11,702 INFO  L82        GeneralOperation]: Start minimizeSevpa. Operand 1062 states.
[2020-09-24 17:10:11,805 INFO  L88        GeneralOperation]: Finished minimizeSevpa. Reduced states from 1062 to 978.
[2020-09-24 17:10:11,807 INFO  L82        GeneralOperation]: Start removeUnreachable. Operand 978 states.
[2020-09-24 17:10:11,813 INFO  L88        GeneralOperation]: Finished removeUnreachable. Reduced from 978 states to 978 states and 1141 transitions.
[2020-09-24 17:10:11,815 INFO  L78                 Accepts]: Start accepts. Automaton has 978 states and 1141 transitions. Word has length 137
[2020-09-24 17:10:11,816 INFO  L84                 Accepts]: Finished accepts. word is rejected.
[2020-09-24 17:10:11,816 INFO  L479      AbstractCegarLoop]: Abstraction has 978 states and 1141 transitions.
[2020-09-24 17:10:11,816 INFO  L480      AbstractCegarLoop]: Interpolant automaton has 24 states.
[2020-09-24 17:10:11,816 INFO  L276                IsEmpty]: Start isEmpty. Operand 978 states and 1141 transitions.
[2020-09-24 17:10:11,828 INFO  L282                IsEmpty]: Finished isEmpty. Found accepting run of length 155
[2020-09-24 17:10:11,828 INFO  L414         BasicCegarLoop]: Found error trace
[2020-09-24 17:10:11,829 INFO  L422         BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2020-09-24 17:10:11,829 WARN  L516      AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0
[2020-09-24 17:10:11,830 INFO  L427      AbstractCegarLoop]: === Iteration 2 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]===
[2020-09-24 17:10:11,830 INFO  L144       PredicateUnifier]: Initialized classic predicate unifier
[2020-09-24 17:10:11,830 INFO  L82        PathProgramCache]: Analyzing trace with hash 1547484832, now seen corresponding path program 1 times
[2020-09-24 17:10:11,830 INFO  L163   FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES
[2020-09-24 17:10:11,831 INFO  L354   FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [660347948]
[2020-09-24 17:10:11,836 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2020-09-24 17:10:11,879 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-09-24 17:10:11,918 FATAL L256   erpolLogProxyWrapper]: Now shrinking...
[2020-09-24 17:10:12,065 FATAL L256   erpolLogProxyWrapper]: Now shrinking...
[2020-09-24 17:10:12,134 FATAL L256   erpolLogProxyWrapper]: Now shrinking...
[2020-09-24 17:10:12,633 FATAL L256   erpolLogProxyWrapper]: Now shrinking...
[2020-09-24 17:10:13,895 FATAL L256   erpolLogProxyWrapper]: Now shrinking...
[2020-09-24 17:10:15,060 FATAL L256   erpolLogProxyWrapper]: Now shrinking...
[2020-09-24 17:10:15,112 FATAL L256   erpolLogProxyWrapper]: Now shrinking...
[2020-09-24 17:10:15,212 FATAL L256   erpolLogProxyWrapper]: Now shrinking...
[2020-09-24 17:10:17,202 FATAL L256   erpolLogProxyWrapper]: Now shrinking...
[2020-09-24 17:10:17,531 FATAL L256   erpolLogProxyWrapper]: Now shrinking...
[2020-09-24 17:10:17,895 FATAL L256   erpolLogProxyWrapper]: Now shrinking...
[2020-09-24 17:10:23,250 FATAL L256   erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set)
[2020-09-24 17:10:23,250 FATAL L256   erpolLogProxyWrapper]: Cardinality of Constraint set: 165
[2020-09-24 17:10:23,250 FATAL L256   erpolLogProxyWrapper]: Number of enumerated Muses: 11
[2020-09-24 17:10:23,251 FATAL L256   erpolLogProxyWrapper]: Time needed for enumeration: 11369
[2020-09-24 17:10:23,251 FATAL L256   erpolLogProxyWrapper]: Heuristic: RANDOM
[2020-09-24 17:10:23,251 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has size: 4
[2020-09-24 17:10:23,251 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has depth: 42
[2020-09-24 17:10:23,251 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has width: 122
[2020-09-24 17:10:23,251 FATAL L256   erpolLogProxyWrapper]: Time needed for Heuristics: 0
[2020-09-24 17:10:23,372 INFO  L375   atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0
[2020-09-24 17:10:23,375 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-09-24 17:10:23,379 FATAL L256   erpolLogProxyWrapper]: Now shrinking...
[2020-09-24 17:10:23,389 FATAL L256   erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set)
[2020-09-24 17:10:23,390 FATAL L256   erpolLogProxyWrapper]: Cardinality of Constraint set: 27
[2020-09-24 17:10:23,390 FATAL L256   erpolLogProxyWrapper]: Number of enumerated Muses: 1
[2020-09-24 17:10:23,390 FATAL L256   erpolLogProxyWrapper]: Time needed for enumeration: 13
[2020-09-24 17:10:23,390 FATAL L256   erpolLogProxyWrapper]: Heuristic: RANDOM
[2020-09-24 17:10:23,391 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has size: 1
[2020-09-24 17:10:23,391 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has depth: 2
[2020-09-24 17:10:23,391 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has width: 1
[2020-09-24 17:10:23,391 FATAL L256   erpolLogProxyWrapper]: Time needed for Heuristics: 0
[2020-09-24 17:10:23,417 INFO  L375   atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 30
[2020-09-24 17:10:23,421 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-09-24 17:10:23,424 FATAL L256   erpolLogProxyWrapper]: Now shrinking...
[2020-09-24 17:10:23,435 FATAL L256   erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set)
[2020-09-24 17:10:23,435 FATAL L256   erpolLogProxyWrapper]: Cardinality of Constraint set: 13
[2020-09-24 17:10:23,435 FATAL L256   erpolLogProxyWrapper]: Number of enumerated Muses: 1
[2020-09-24 17:10:23,435 FATAL L256   erpolLogProxyWrapper]: Time needed for enumeration: 12
[2020-09-24 17:10:23,435 FATAL L256   erpolLogProxyWrapper]: Heuristic: RANDOM
[2020-09-24 17:10:23,436 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has size: 2
[2020-09-24 17:10:23,436 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has depth: 2
[2020-09-24 17:10:23,436 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has width: 4
[2020-09-24 17:10:23,436 FATAL L256   erpolLogProxyWrapper]: Time needed for Heuristics: 0
[2020-09-24 17:10:23,467 INFO  L134       CoverageAnalysis]: Checked inductivity of 9 backedges. 8 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2020-09-24 17:10:23,468 INFO  L354   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [660347948]
[2020-09-24 17:10:23,468 INFO  L220   FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences.
[2020-09-24 17:10:23,468 INFO  L233   FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5] total 5
[2020-09-24 17:10:23,468 INFO  L156   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [642955985]
[2020-09-24 17:10:23,470 INFO  L459      AbstractCegarLoop]: Interpolant automaton has 5 states
[2020-09-24 17:10:23,471 INFO  L143   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES
[2020-09-24 17:10:23,471 INFO  L142   InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants.
[2020-09-24 17:10:23,471 INFO  L144   InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20
[2020-09-24 17:10:23,471 INFO  L87              Difference]: Start difference. First operand 978 states and 1141 transitions. Second operand 5 states.
[2020-09-24 17:10:25,465 INFO  L144             Difference]: Subtrahend was deterministic. Have not used determinization.
[2020-09-24 17:10:25,466 INFO  L93              Difference]: Finished difference Result 2270 states and 2731 transitions.
[2020-09-24 17:10:25,467 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. 
[2020-09-24 17:10:25,467 INFO  L78                 Accepts]: Start accepts. Automaton has 5 states. Word has length 154
[2020-09-24 17:10:25,468 INFO  L84                 Accepts]: Finished accepts. some prefix is accepted.
[2020-09-24 17:10:25,481 INFO  L225             Difference]: With dead ends: 2270
[2020-09-24 17:10:25,481 INFO  L226             Difference]: Without dead ends: 1316
[2020-09-24 17:10:25,486 INFO  L675         BasicCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 6 SyntacticMatches, 1 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=13, Invalid=17, Unknown=0, NotChecked=0, Total=30
[2020-09-24 17:10:25,488 INFO  L82        GeneralOperation]: Start minimizeSevpa. Operand 1316 states.
[2020-09-24 17:10:25,565 INFO  L88        GeneralOperation]: Finished minimizeSevpa. Reduced states from 1316 to 1264.
[2020-09-24 17:10:25,565 INFO  L82        GeneralOperation]: Start removeUnreachable. Operand 1264 states.
[2020-09-24 17:10:25,574 INFO  L88        GeneralOperation]: Finished removeUnreachable. Reduced from 1264 states to 1264 states and 1503 transitions.
[2020-09-24 17:10:25,575 INFO  L78                 Accepts]: Start accepts. Automaton has 1264 states and 1503 transitions. Word has length 154
[2020-09-24 17:10:25,577 INFO  L84                 Accepts]: Finished accepts. word is rejected.
[2020-09-24 17:10:25,578 INFO  L479      AbstractCegarLoop]: Abstraction has 1264 states and 1503 transitions.
[2020-09-24 17:10:25,578 INFO  L480      AbstractCegarLoop]: Interpolant automaton has 5 states.
[2020-09-24 17:10:25,578 INFO  L276                IsEmpty]: Start isEmpty. Operand 1264 states and 1503 transitions.
[2020-09-24 17:10:25,589 INFO  L282                IsEmpty]: Finished isEmpty. Found accepting run of length 159
[2020-09-24 17:10:25,589 INFO  L414         BasicCegarLoop]: Found error trace
[2020-09-24 17:10:25,590 INFO  L422         BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2020-09-24 17:10:25,590 WARN  L516      AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1
[2020-09-24 17:10:25,590 INFO  L427      AbstractCegarLoop]: === Iteration 3 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]===
[2020-09-24 17:10:25,590 INFO  L144       PredicateUnifier]: Initialized classic predicate unifier
[2020-09-24 17:10:25,591 INFO  L82        PathProgramCache]: Analyzing trace with hash 1076336430, now seen corresponding path program 1 times
[2020-09-24 17:10:25,591 INFO  L163   FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES
[2020-09-24 17:10:25,591 INFO  L354   FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [445585640]
[2020-09-24 17:10:25,591 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2020-09-24 17:10:25,649 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-09-24 17:10:25,694 FATAL L256   erpolLogProxyWrapper]: Now shrinking...
[2020-09-24 17:10:26,035 FATAL L256   erpolLogProxyWrapper]: Now shrinking...
[2020-09-24 17:10:26,108 FATAL L256   erpolLogProxyWrapper]: Now shrinking...
[2020-09-24 17:10:26,185 FATAL L256   erpolLogProxyWrapper]: Now shrinking...
[2020-09-24 17:10:26,916 FATAL L256   erpolLogProxyWrapper]: Now shrinking...
[2020-09-24 17:10:27,046 FATAL L256   erpolLogProxyWrapper]: Now shrinking...
[2020-09-24 17:10:27,205 FATAL L256   erpolLogProxyWrapper]: Now shrinking...
[2020-09-24 17:10:28,246 FATAL L256   erpolLogProxyWrapper]: Now shrinking...
[2020-09-24 17:10:28,312 FATAL L256   erpolLogProxyWrapper]: Now shrinking...
[2020-09-24 17:10:32,291 FATAL L256   erpolLogProxyWrapper]: Now shrinking...
[2020-09-24 17:10:32,586 FATAL L256   erpolLogProxyWrapper]: Now shrinking...
[2020-09-24 17:10:32,820 FATAL L256   erpolLogProxyWrapper]: Now shrinking...
[2020-09-24 17:10:37,056 FATAL L256   erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set)
[2020-09-24 17:10:37,056 FATAL L256   erpolLogProxyWrapper]: Cardinality of Constraint set: 169
[2020-09-24 17:10:37,057 FATAL L256   erpolLogProxyWrapper]: Number of enumerated Muses: 12
[2020-09-24 17:10:37,057 FATAL L256   erpolLogProxyWrapper]: Time needed for enumeration: 11405
[2020-09-24 17:10:37,057 FATAL L256   erpolLogProxyWrapper]: Heuristic: RANDOM
[2020-09-24 17:10:37,057 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has size: 22
[2020-09-24 17:10:37,057 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has depth: 18
[2020-09-24 17:10:37,057 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has width: 138
[2020-09-24 17:10:37,057 FATAL L256   erpolLogProxyWrapper]: Time needed for Heuristics: 0
[2020-09-24 17:10:37,648 INFO  L375   atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0
[2020-09-24 17:10:37,654 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-09-24 17:10:37,660 FATAL L256   erpolLogProxyWrapper]: Now shrinking...
[2020-09-24 17:10:37,698 FATAL L256   erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set)
[2020-09-24 17:10:37,698 FATAL L256   erpolLogProxyWrapper]: Cardinality of Constraint set: 27
[2020-09-24 17:10:37,698 FATAL L256   erpolLogProxyWrapper]: Number of enumerated Muses: 1
[2020-09-24 17:10:37,698 FATAL L256   erpolLogProxyWrapper]: Time needed for enumeration: 43
[2020-09-24 17:10:37,698 FATAL L256   erpolLogProxyWrapper]: Heuristic: RANDOM
[2020-09-24 17:10:37,698 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has size: 4
[2020-09-24 17:10:37,699 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has depth: 2
[2020-09-24 17:10:37,699 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has width: 18
[2020-09-24 17:10:37,699 FATAL L256   erpolLogProxyWrapper]: Time needed for Heuristics: 0
[2020-09-24 17:10:37,766 INFO  L375   atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 30
[2020-09-24 17:10:37,770 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-09-24 17:10:37,774 FATAL L256   erpolLogProxyWrapper]: Now shrinking...
[2020-09-24 17:10:37,803 FATAL L256   erpolLogProxyWrapper]: Now shrinking...
[2020-09-24 17:10:37,868 FATAL L256   erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set)
[2020-09-24 17:10:37,869 FATAL L256   erpolLogProxyWrapper]: Cardinality of Constraint set: 17
[2020-09-24 17:10:37,869 FATAL L256   erpolLogProxyWrapper]: Number of enumerated Muses: 2
[2020-09-24 17:10:37,870 FATAL L256   erpolLogProxyWrapper]: Time needed for enumeration: 98
[2020-09-24 17:10:37,870 FATAL L256   erpolLogProxyWrapper]: Heuristic: RANDOM
[2020-09-24 17:10:37,870 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has size: 5
[2020-09-24 17:10:37,871 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has depth: 2
[2020-09-24 17:10:37,871 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has width: 9
[2020-09-24 17:10:37,871 FATAL L256   erpolLogProxyWrapper]: Time needed for Heuristics: 1